| 高熔体强度聚乳酸的研究进展 |
| |
| 引用本文： | 张尉,李鹏,朱红,孔米秋,黄亚江,李光宪.高熔体强度聚乳酸的研究进展[J].高分子通报,2020(2):1-7. |
| |
| 作者姓名： | 张尉 李鹏 朱红 孔米秋 黄亚江 李光宪 |
| |
| 作者单位： | 四川大学高分子科学与工程学院;空天科学与工程学院 |
| |
| 基金项目： | 国家自然科学基金资助项目(51503133,51721091)。 |
| |
| 摘 要： | 聚乳酸(PLA)具有完全可再生、完全可降解、生物相容等优异的综合性能,在一次性餐具、日用品、包装材料、纺丝和3D打印等领域具有广阔应用前景。但是,由于PLA是直链脂肪族聚酯,其熔体强度低,导致PLA在使用发泡、熔融纺丝、吹膜、热成型等基于拉伸流动场的加工成型方法时工艺性能较差。因此,提高PLA的熔体强度对于改善其加工性能和促进其产业化推广具有重要的意义。本文综述了改善PLA熔体强度的技术研究进展,主要包括共聚技术、扩链改性技术、自由基反应技术和纳米技术等。
|
| 关 键 词： | 聚乳酸 熔体强度 分子结构 纳米粒子 |
Recent Progress on Polylactide with High Melt Strength |
| |
| ZHANG Wei,LI Peng,ZHU Hong,KONG Mi-qiu,HUANG Ya-jiang,LI Guang-xian.Recent Progress on Polylactide with High Melt Strength[J].Polymer Bulletin,2020(2):1-7. |
| |
| Authors: | ZHANG Wei LI Peng ZHU Hong KONG Mi-qiu HUANG Ya-jiang LI Guang-xian |
| |
| Institution: | (College of Polymer Science and Engineering,State Key Laboratory of Polymer Materials Engineering Sichuan University,Chengdu 610065,China;School of Aeronautics and Astronautics,Sichuan University Chengdu 610065,China) |
| |
| Abstract: | Polylactide(PLA) is completely renewable, biodegradable and good biocompatibility, which has a great potential in the application of tableware, packaging, spinning, biomedical devices and 3D printing. However, the melt strength of PLA is extremely low, leading to its bad processing properties in the extensional flow based processing methods, such as foaming, melt spinning, film blowing, thermal forming, and so on. Thus, the improvement of the melt strength of PLA is important for extensional flow based processing methods. This paper reviews recent progress on PLA with high melt strength, including copolymerization, chain extender, reactive extrusion, the addition of nanoparticles. |
| |
| Keywords: | Polylactide Melt strength Molecular structure Nanoparticles |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
